CN106519274A - Production method of novel prepreg material used for glue joint - Google Patents
Production method of novel prepreg material used for glue joint Download PDFInfo
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- CN106519274A CN106519274A CN201610968411.9A CN201610968411A CN106519274A CN 106519274 A CN106519274 A CN 106519274A CN 201610968411 A CN201610968411 A CN 201610968411A CN 106519274 A CN106519274 A CN 106519274A
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- Prior art keywords
- prepreg
- resin
- glued membrane
- carbon fiber
- glue film
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J5/00—Manufacture of articles or shaped materials containing macromolecular substances
- C08J5/24—Impregnating materials with prepolymers which can be polymerised in situ, e.g. manufacture of prepregs
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L61/00—Compositions of condensation polymers of aldehydes or ketones; Compositions of derivatives of such polymers
- C08L61/04—Condensation polymers of aldehydes or ketones with phenols only
- C08L61/06—Condensation polymers of aldehydes or ketones with phenols only of aldehydes with phenols
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L63/00—Compositions of epoxy resins; Compositions of derivatives of epoxy resins
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L79/00—Compositions of macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing nitrogen with or without oxygen or carbon only, not provided for in groups C08L61/00 - C08L77/00
- C08L79/04—Polycondensates having nitrogen-containing heterocyclic rings in the main chain; Polyhydrazides; Polyamide acids or similar polyimide precursors
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L79/00—Compositions of macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing nitrogen with or without oxygen or carbon only, not provided for in groups C08L61/00 - C08L77/00
- C08L79/04—Polycondensates having nitrogen-containing heterocyclic rings in the main chain; Polyhydrazides; Polyamide acids or similar polyimide precursors
- C08L79/08—Polyimides; Polyester-imides; Polyamide-imides; Polyamide acids or similar polyimide precursors
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2361/00—Characterised by the use of condensation polymers of aldehydes or ketones; Derivatives of such polymers
- C08J2361/04—Condensation polymers of aldehydes or ketones with phenols only
- C08J2361/06—Condensation polymers of aldehydes or ketones with phenols only of aldehydes with phenols
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2363/00—Characterised by the use of epoxy resins; Derivatives of epoxy resins
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2379/00—Characterised by the use of macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing nitrogen with or without oxygen, or carbon only, not provided for in groups C08J2361/00 - C08J2377/00
- C08J2379/04—Polycondensates having nitrogen-containing heterocyclic rings in the main chain; Polyhydrazides; Polyamide acids or similar polyimide precursors
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2379/00—Characterised by the use of macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing nitrogen with or without oxygen, or carbon only, not provided for in groups C08J2361/00 - C08J2377/00
- C08J2379/04—Polycondensates having nitrogen-containing heterocyclic rings in the main chain; Polyhydrazides; Polyamide acids or similar polyimide precursors
- C08J2379/08—Polyimides; Polyester-imides; Polyamide-imides; Polyamide acids or similar polyimide precursors
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
- C08L2205/035—Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend
Abstract
The invention provides a production method of a novel prepreg material used for glue joint. In production of the novel prepreg material, one surface of carbon fiber is coated with a glue film used for prepreg so as to form a single surface glue film, and the other surface of carbon fiber is coated with a structure glue film at the same time, and the carbon fiber coated with the glue film used for prepreg and the structure glue film is subjected to preimpregnation so as to obtain the novel prepreg material. According to the production method, a resin A of the structure glue film and a resin B of the glue film used for prepreg are resins obtained via co-curing in a same system; the resin A is subjected to coating so as to obtain the structure glue film C; the resin B is subjected to coating so as to obtain the glue film D used for prepreg; and the novel prepreg material is obtained via preimpregnation of the structure glue film, the glue film used for prepreg, and carbon fiber at the same time. Combination of the structure glue film with prepreg is disclosed for the first time, in paving process, the novel prepreg material can be used for gluing sandwich structure materials directly, mould paving efficiency and performance of sandwich structure parts are improved, especially production efficiency of large sandwich structures can be doubled, and the original excellent performance of prepreg is ensured because preimpregnation of fiber with resin is carried out, and only the prepreg surface is coated with the structure glue film.
Description
Technical field
The present invention relates to a kind of production technology of new splicing prepreg.
Background technology
With the development in epoch, carbon fibre composite is increasingly wider to be applied to various fields, including space flight and aviation, iron
The fields such as road traffic, automobile, Leisure Sports.Therefore impregnating continuous fibres or knitted under conditions of strict control using resin matrix
The prepreg that thing is obtained, is widely used as a kind of intermediate materials of manufacture carbon fibre composite.
When product is produced, the manufacture of sandwich structure is generally required first in one Rotating fields glued membrane of sandwich material surface paving,
Then on surface, paving prepreg is solidified again.So it is accomplished by carrying out cutting twice in whole sandwich structure manufacture process
Operate with paving, have impact on operating efficiency and performance accuracy.Particularly when large-scale product is produced, work effect can be had a strong impact on
Rate.
For the mechanical property of sheet material after ensureing the impregnation degree of prepreg and solidifying, will not directly by structural film adhesive and fibre
Dimension infiltration.This is also in that the viscosity of common middle temperature prepreg resin（65℃）Less, but be glued middle temperature structural film adhesive
Due to being directly to use, on the premise of its adhesive property is ensured, resin viscosity（65℃）Generally will compared with prepreg resin
It is bigger than normal a lot, if requiring to improve production temperature to meet impregnation, it is easy to solidification occurs, and causes glued membrane to scrap.
Therefore, in order to efficiently and accurately produce sandwich structure product, it is necessary to study a kind of new prepreg and be used for
Substitute the existing structural film adhesive being used separately and prepreg.
The content of the invention
It is an object of the invention to provide a kind of production technology of new splicing prepreg is solved present in prior art
Troublesome poeration during follow-up honeycomb or other sandwich material pavings, the problem of low production efficiency, and ensure that the product
Produce in enormous quantities.
The present invention technical solution be：
Prepreg glued membrane, during production prepreg, is covered in carbon fiber by a kind of production technology of new splicing prepreg
Simultaneously go up into one side glued membrane, while the another side in carbon fiber covers a Rotating fields glued membrane, and the carbon after two kinds of glued membranes will be coated
Fiber soaks into prepreg, and concrete production craft step is：
A) resin B of the Resin A of design structure glued membrane and prepreg glued membrane, Resin A and resin B are to realize altogether in same system
The resin of solidification；
B) structural film adhesive C is applied as upper glued membrane with Resin A；
C) prepreg glued membrane D is applied as lower glued membrane with resin B；；
D) by step b）、c）Resulting structures glued membrane C, prepreg two kinds of glued membranes of glued membrane D respectively carbon fiber upper and lower surface with
Carbon fiber is impregnated with into prepreg simultaneously.
Further, step d）In, impregnation temperature is 50 DEG C ~ 80 DEG C, and at such a temperature, Resin A and resin B viscosity are differed
100Pa.s~500Pa.s。
Further, Resin A is using in epoxy resin, phenolic resin, bimaleimide resin and cyanate ester resin
The composition being mixed to get for one or more.
Further, 65 DEG C of the viscosity requirement of Resin A is in 100Pa.s ~ 1000Pa.s.
Further, resin B is using in epoxy resin, phenolic resin, bimaleimide resin and cyanate ester resin
The composition being mixed to get for one or more.
Further, 65 DEG C of the viscosity requirement of resin B is between 8 ~ 50Pa.s.
Further, step c）The structural film adhesive grammes per square metre of middle coating be 100 ~ 500gsm, preferably 110 ~ 300gsm, carbon
Fiber adopts one-way tape or two-way cloth, and the fiber areal densities of carbon fiber are 20 ~ 300gsm, and prepreg glued membrane grammes per square metre is carbon used
The 40 ~ 80% of fiber areal densities mass percent, preferably 42 ~ 72%.
Further, step d）Used in one-step method when impregnation technological parameter glued membrane B is infiltrated in the carbon fibers, and tie
Structure glued membrane A is not impregnated with or is seldom impregnated with the fibre.
Prepreg resin, during production prepreg, is applied as glued membrane by the production technology of this kind of new splicing prepreg
Be impregnated with fiber, while a Rotating fields glued membrane is covered in fiber another side, be easy to preferably be connected with other sandwich materials, it is convenient
Use, mass production can be realized.The production technology of this kind of new splicing prepreg, structural film adhesive Resin A and preimpregnation
Material resin B is necessary for same system resin, can carry out co-curing.Resin A viscosity is as big as possible, 65 DEG C 100Pa.s ~
1000Pa.s；Resin B viscosity is as little as possible, and 65 DEG C between 8 ~ 50Pa.s.
Using impregnation technological parameter during one-step method, the production technology of this kind of new splicing prepreg, includes that temperature etc. should
Ensure that prepreg glued membrane infiltrates in the carbon fibers, and structural film adhesive should not be impregnated with or seldom be impregnated with the fibre, it is ensured that structure
Integrality of the glued membrane in prepreg.Impregnation temperature can be 50 DEG C ~ 80 DEG C, at a temperature of impregnation, Resin A and resin B viscosity
100Pa.s ~ 500Pa.s should be differed.
The invention has the beneficial effects as follows, the production technology of this kind of new splicing prepreg has the advantage that：
First, through this PROCESS FOR TREATMENT, prepreg can be directly bonding with sandwich material during paving, changes conventional elder generation
Rubberizing film repaves the laying operation of prepreg, reduces the operating time, improves product production efficiency and production precision, it is ensured that system
Part performance.
2nd, in prepreg production process, prepreg resin has infiltrated fiber and structural film adhesive is placed only in prepreg table
Face, it is ensured that the original excellent properties of prepreg.
3rd, whole production process is simple to operate and efficient, is conveniently produced in enormous quantities, improves follow-up production effect
Rate, greatly reduces production cost.
Description of the drawings
Fig. 1 is the structural representation of embodiment of the present invention prepreg；
Fig. 2 is prepreg production process schematic diagram in embodiment.
Wherein, 11- structure glues film layer；12- carbon fibers；13- prepreg glued membranes；21- structural film adhesives；22- carbon fiber yarns
Beam；23- prepreg glued membranes；24- is impregnated with roller set；25- finished product prepregs.
Specific embodiment
Describe the preferred embodiments of the present invention below in conjunction with the accompanying drawings in detail.
Embodiment
The new prepreg of embodiment and its production technology, key point be abandoned sandwich structure laying during first spread
Glued membrane repaves the conventional method of prepreg, and innovatively structural film adhesive is combined with prepreg, reduces in cutting and laying mistake
Waste in journey, during alloing paving, prepreg directly pastes sandwich material, improves the mould paving efficiency of sandwich product
And performance.The production of particularly large-scale sandwich structure, the efficiency that can be doubled.
Embodiment technique is produced suitable for prepreg, it is not necessary to which pre- dipping machine is transformed, it is ensured that prepreg high-volume
Equipment requirement needed for production.
Embodiment
According to splicing prepreg structural representation, such as Fig. 1, instantiation is described in detail.According to design, production such as Fig. 1
Middle prepreg, wherein, structural film adhesive 11 is the glued membrane Resin A of epoxy-resin systems, and at 65 DEG C, viscosity is 200Pa.s.Glued membrane gram
Weight is 110gsm.Wherein, carbon fiber 12 is to open up the one-way tape that yarn is formed by carbon fiber bundle, and fiber areal densities are 75gsm.Wherein,
Prepreg glued membrane 13 is the prepreg resin B of epoxy-resin systems.At 65 DEG C, the viscosity of resin is 10Pa.s.
Implement process as follows：
110gsm structural film adhesives 21 are applied as at 70 DEG C with Resin A.
61gsm prepregs glued membrane 23 is applied as at 55 DEG C with resin B.
Structural film adhesive 21 and prepreg are impregnated with simultaneously with glued membrane 23 on containing dipping machine.Structural film adhesive 21 is upper glued membrane, in advance
Leaching material glued membrane 23 is lower glued membrane.During impregnation, the maximum temperature of equipment impregnation roller set 24 is 60 DEG C, and running roller gap is
0.45mm, it is ensured that upper glued membrane can be covered in prepreg surface, do not infiltrate carbon fiber, and prepreg glued membrane 23 fully can infiltrate
Fiber 22.Finally obtain finished product prepreg 25.
After testing, structural film adhesive 11 only with 12 gentle touchdown of fibrage.By splicing with the direct paving of prepreg in paper honeycomb
After upper, structural film adhesive faces paper honeycomb, is then solidified.After solidification, finished surface does not have crackle, there is no the defects such as warpage,
Concrete test result is arranged in table 1 below.The prepreg of the structural film adhesive and same resin content of identical grammes per square metre is individually produced in addition,
Repave prepreg to be solidified after structural film adhesive is layered on paper honeycomb.Test result is also arranged in table 1 below.
The splicing prepreg of 1 embodiment of table repaves the test result of prepreg with first paving glued membrane
| Technique | It is apparent | Climbing drum peel strength |
| The splicing prepreg of embodiment | Surface does not have crackle, there is no warpage | 65 N·m/m |
| First spread glued membrane and repave prepreg | Surface does not have crackle, there is no warpage | 64 N·m/m |
From table 1, it can be observed that the sandwich material that new splicing prepreg is obtained repaves prepreg with first paving glued membrane and obtains
Sandwich material performance it is suitable.
Above-described instantiation is intended merely to describe the present invention in detail, but is not damaging spirit of the invention and model
In the case of enclosing, various changes, modification can be carried out.These changes and improvement both fall within claimed scope of the invention Nei Benfa
Bright claimed scope appended claims and its equivalent thereof.
Claims (8)
1. a kind of production technology of new splicing prepreg, it is characterised in that：During production prepreg, prepreg glued membrane is covered
Cover into one side glued membrane in the one side of carbon fiber, while the another side in carbon fiber covers a Rotating fields glued membrane, and two will be coated
Plant the carbon fiber after glued membrane and soak into prepreg, concrete production craft step is：
The resin B of the Resin A and prepreg glued membrane of design structure glued membrane, Resin A and resin B are to realize in same system altogether admittedly
The resin of change；
Structural film adhesive C is applied as upper glued membrane with Resin A；
Prepreg glued membrane D is applied as lower glued membrane with resin B；；
By step b）、c）Resulting structures glued membrane C, prepreg two kinds of glued membranes of glued membrane D are respectively in the upper and lower surface and carbon of carbon fiber
Fiber is impregnated with into prepreg simultaneously.
2. the production technology of new splicing prepreg as claimed in claim 1, it is characterised in that：Step d）In, impregnation temperature
Spend for 50 DEG C ~ 80 DEG C, at such a temperature, Resin A and resin B viscosity differ 100Pa.s ~ 500Pa.s.
3. the production technology of new splicing prepreg as claimed in claim 1, it is characterised in that：Resin A adopts asphalt mixtures modified by epoxy resin
The composition that one or more in fat, phenolic resin, bimaleimide resin and cyanate ester resin is mixed to get.
4. the production technology of new splicing prepreg as claimed in claim 3, it is characterised in that：The viscosity requirement of Resin A
65 DEG C in 100Pa.s ~ 1000Pa.s.
5. the production technology of new splicing prepreg as claimed in claim 4, it is characterised in that：Resin B adopts asphalt mixtures modified by epoxy resin
The composition that one or more in fat, phenolic resin, bimaleimide resin and cyanate ester resin is mixed to get.
6. the production technology of new splicing prepreg as claimed in claim 5, it is characterised in that：The viscosity requirement of resin B
65 DEG C between 8 ~ 50Pa.s.
7. the production technology of new splicing prepreg as claimed in claim 7, it is characterised in that：Step b）The knot of middle coating
Structure glued membrane grammes per square metre is 100 ~ 500gsm, and carbon fiber adopts one-way tape or two-way cloth, the fiber areal densities of carbon fiber are 20 ~
300gsm, prepreg glued membrane grammes per square metre are the 40 ~ 80% of carbon fiber surface density mass percent used.
8. the production technology of the new splicing prepreg as described in any one of claim 1-7, it is characterised in that：Step d）In
Glued membrane D is infiltrated in the carbon fibers using impregnation technological parameter during one-step method, and structural film adhesive C is not impregnated with or seldom containing being immersed in
In fiber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610968411.9A CN106519274A (en) | 2016-10-28 | 2016-10-28 | Production method of novel prepreg material used for glue joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610968411.9A CN106519274A (en) | 2016-10-28 | 2016-10-28 | Production method of novel prepreg material used for glue joint |
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| Publication Number | Publication Date |
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| CN106519274A true CN106519274A (en) | 2017-03-22 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201610968411.9A Pending CN106519274A (en) | 2016-10-28 | 2016-10-28 | Production method of novel prepreg material used for glue joint |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108943772A (en) * | 2017-12-14 | 2018-12-07 | 中航复合材料有限责任公司 | A kind of fast preparation method of high-performance composite materials sheet material |
| CN110774674A (en) * | 2019-11-11 | 2020-02-11 | 江苏恒神股份有限公司 | Fiber-reinforced resin-based prepreg and preparation method thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102922855A (en) * | 2012-10-24 | 2013-02-13 | 中国航空工业集团公司北京航空材料研究院 | Method for preparing high-tenacity hot-melt prepreg by hot-melt resin matrix |
| CN103129042A (en) * | 2013-01-30 | 2013-06-05 | 广东生益科技股份有限公司 | Carbon fiber base fabric composite material and preparation method and application thereof |
| CN105882077A (en) * | 2016-04-27 | 2016-08-24 | 航天材料及工艺研究所 | Method using coating technology to prepare solution-method phenolic aldehyde prepreg |
-
2016
- 2016-10-28 CN CN201610968411.9A patent/CN106519274A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102922855A (en) * | 2012-10-24 | 2013-02-13 | 中国航空工业集团公司北京航空材料研究院 | Method for preparing high-tenacity hot-melt prepreg by hot-melt resin matrix |
| CN103129042A (en) * | 2013-01-30 | 2013-06-05 | 广东生益科技股份有限公司 | Carbon fiber base fabric composite material and preparation method and application thereof |
| CN105882077A (en) * | 2016-04-27 | 2016-08-24 | 航天材料及工艺研究所 | Method using coating technology to prepare solution-method phenolic aldehyde prepreg |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108943772A (en) * | 2017-12-14 | 2018-12-07 | 中航复合材料有限责任公司 | A kind of fast preparation method of high-performance composite materials sheet material |
| CN110774674A (en) * | 2019-11-11 | 2020-02-11 | 江苏恒神股份有限公司 | Fiber-reinforced resin-based prepreg and preparation method thereof |
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Application publication date: 20170322 |